Sökning: "organic and inorganic carbon content"

Visar resultat 1 - 5 av 23 uppsatser innehållade orden organic and inorganic carbon content.

  1. 1. Biochar from separated digestate and pig manure as soil amendment

    Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Soil and Environment

    Författare :Lovisa Nissen; [2022]
    Nyckelord :separation; screw press; incubation study; CO2 emission; N mineralization;

    Sammanfattning : The situation in and around the Baltic Sea, with large areas with hypoxia in the sea and areas in the watershed with a high concentration of animal farms, has led to a need to increase the nutrient recycling of animal manure. High levels of phosphorus (P) in the soil lead to leaching, and by reducing the P-level in organic fertilizers, this leaching can be reduced. LÄS MER

  3. 2. Effekten av olika brukningsmetoder på kolinlagring i åkermark

    Master-uppsats, Lunds universitet/Miljövetenskaplig utbildning; Lunds universitet/Centrum för miljö- och klimatvetenskap (CEC)

    Författare :Sanna Magnusson; [2022]
    Nyckelord :Soil organic carbon; SOC; carbon sequestration; soil health; agriculture; arable land; crop production; Sweden; cover crops; no-till; reduced tilling; organic amendments; harvest residues; crop rotation; legumes; perennial crops; agroforestry; combined management practices.; Earth and Environmental Sciences;

    Sammanfattning : Increased carbon sequestration in agricultural land is an important measure to reduce global warming. Since the soil is a large carbon sink, a small change in the soil organic carbon (SOC) stocks can make a substantial difference to the carbon dioxide content in the atmosphere. LÄS MER

  4. 3. The content, chemical state and accumulation of vanadium in a drill core of Alum shale from Kinnekulle

    Kandidat-uppsats, Lunds universitet/Kemiska institutionen

    Författare :Niklas Gunnarsson; [2019]
    Nyckelord :Alum Shale Formation; Alum shale; Kinnekulle; Vanadium; Inorganic chemistry; Oorganisk kemi; Chemistry;

    Sammanfattning : Exploitation of alum shale is a controversial subject in Sweden due to the history of pollution of the environment and groundwater, from past mining industries. The extraction of vanadium from alum shale is no different. Nevertheless the metal is a valuable resource used in tools, building, industries and aerospace materials. LÄS MER

  5. 4. Stratigraphy and dating of a lake sediment record from Lyngsjön, eastern Scania : human impact and aeolian sand deposition during the last millennium

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Marijana Stevic; [2019]
    Nyckelord :aeolian activity; human impact; geochemistry; lake sediments; pollen; Earth and Environmental Sciences;

    Sammanfattning : A small lake in north-eastern Scania, southern Sweden, Lake Lyngsjön, reveals a long history of aeolian sand drift based on a 3 meter long sediment sequence covering the last approximately 1400 years. Human impact, primarily through intensified land use and decreased forest cover, has periodically led to increased aeolian sand drift both locally and regionally. LÄS MER

  7. 5. Pyrolysis of Waste Electrical and Electronic Equipment (WEEE) Plastics for Energy and Material Recovery

    Master-uppsats, KTH/Energiteknik

    Författare :Ioannis Asvestas; [2018]
    Nyckelord :;

    Sammanfattning : The society is striving to tackle the over-extraction of Earth´s resources due to the ongoing population rise. The increased needs of energy and material resources leads to a growing volume of materials waste, which include a variety of dangerous pollutants among them. LÄS MER